Treaties and other international agreements are written agreements between sovereign states (or between states and international organizations) governed by international law. The United States enters into more than 200 treaties and other international agreements each year.
The subjects of treaties span the whole spectrum of international relations: peace, trade, defense, territorial boundaries, human rights, law enforcement, environmental matters, and many others. As times change, so do treaties. In 1796, the United States entered into the Treaty with Tripoli to protect American citizens from kidnapping and ransom by pirates in the Mediterranean Sea. In 2001, the United States agreed to a treaty on cybercrime.